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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt b/Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt new file mode 100644 index 000000000..bd8b0c69f --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt @@ -0,0 +1,71 @@ +NXP LPC18xx/43xx SCU pin controller Device Tree Bindings +-------------------------------------------------------- + +Required properties: +- compatible : Should be "nxp,lpc1850-scu" +- reg : Address and length of the register set for the device +- clocks : Clock specifier (see clock bindings for details) + +The lpc1850-scu driver uses the generic pin multiplexing and generic pin +configuration documented in pinctrl-bindings.txt. + +The following generic nodes are supported: + - function + - pins + - bias-disable + - bias-pull-up + - bias-pull-down + - drive-strength + - input-enable + - input-disable + - input-schmitt-enable + - input-schmitt-disable + - slew-rate + +NXP specific properties: + - nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller + irq number 0 to 7. See example below. + +Not all pins support all properties so either refer to the NXP 1850/4350 +user manual or the pin table in the pinctrl-lpc18xx driver for supported +pin properties. + +Example: +pinctrl: pinctrl@40086000 { + compatible = "nxp,lpc1850-scu"; + reg = <0x40086000 0x1000>; + clocks = <&ccu1 CLK_CPU_SCU>; + + i2c0_pins: i2c0-pins { + i2c0_pins_cfg { + pins = "i2c0_scl", "i2c0_sda"; + function = "i2c0"; + input-enable; + }; + }; + + uart0_pins: uart0-pins { + uart0_rx_cfg { + pins = "pf_11"; + function = "uart0"; + bias-disable; + input-enable; + }; + + uart0_tx_cfg { + pins = "pf_10"; + function = "uart0"; + bias-disable; + }; + }; + + gpio_joystick_pins: gpio-joystick-pins { + gpio_joystick_1_cfg { + pins = "p9_0"; + function = "gpio"; + nxp,gpio-pin-interrupt = <0>; + input-enable; + bias-disable; + }; + }; +}; |